198863370 has 64 divisors (see below), whose sum is σ = 538266240. Its totient is φ = 52233984.

The previous prime is 198863369. The next prime is 198863381. The reversal of 198863370 is 73368891.

It is a happy number.

198863370 is a `hidden beast` number, since 1 + 9 + 8 + 8 + 633 + 7 + 0 = 666.

198863370 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12594 + ... + 23586.

It is an arithmetic number, because the mean of its divisors is an integer number (8410410).

Almost surely, 2^198863370 is an apocalyptic number.

198863370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 198863370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269133120).

198863370 is an abundant number, since it is smaller than the sum of its proper divisors (339402870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198863370 is a wasteful number, since it uses less digits than its factorization.

198863370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11076 (or 11070 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 198863370 is about 14101.8924261959. The cubic root of 198863370 is about 583.6936002197.

The spelling of 198863370 in words is "one hundred ninety-eight million, eight hundred sixty-three thousand, three hundred seventy".